Perforated plank for the floor of a material drying bin



FIG. 1 is a top perspective view of a plank for a material drying bin showing my new design;

FIG. 2 is an enlarged fragmentary top plan view thereof;

FIG. 3 is a side view thereof on an enlarged scale relative to the showing in FIG. 1;

FIG. 4 is a top plan view thereof;

FIG. 5 is a side view thereof looking at the side opposite the one shown in FIG. 3;

FIG. 6 is an end view thereof looking toward the left as viewed in FIG. 4; and

FIG. 7 is a bottom plan view thereof. 

The ornamental design for a perforated plank for the floor of a material drying bin, substantially as shown. 